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{{Information |Description=Elsa Modems ISDN und PSTN |Source=own photography, license under GFDL1.2 + CC-by-nc-nd/3.0 |Date=unbekannt |Author=Johann H. Addicks - [email protected] |Permission=see below: you may choose from GFDL1.2, CC-sa-nc-nd/3.0 or even P